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Virtual keyboard design scheme for inputting Chinese characters by brain waves

A technology of virtual keyboard and design scheme, applied in the input/output of user/computer interaction, electrical digital data processing, input/output process of data processing, etc., to improve the accuracy rate, increase the input speed, and reduce the probability of errors. Effect

Inactive Publication Date: 2012-02-01
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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AI Technical Summary

Problems solved by technology

In terms of Chinese input, Zhejiang University reported a brain-computer interface system based on stroke input [Acta Electronics, 37(8): 1733-1738, 2009], other Chinese character input systems have not been reported

Method used

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  • Virtual keyboard design scheme for inputting Chinese characters by brain waves
  • Virtual keyboard design scheme for inputting Chinese characters by brain waves
  • Virtual keyboard design scheme for inputting Chinese characters by brain waves

Examples

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Embodiment

[0019] image 3 In the shown embodiment, the user wishes to input a word "白" on the computer screen through this interface, the pinyin is "bai", the corresponding initial consonant "b" is in the second key grain of the first row, and the final consonant "ai ” at the 5th keygrain in row 2. For the input of the initial consonant "b", two steps of selection are required to complete. The first step is to select the "(1)" button on line 6, such as image 3 As shown, when selected, the virtual keyboard will look like Figure 4 shown. The second step is to select the "b" button in the first row selected, thus completing the input of the initial "b", and the matching input method will be as follows Image 6 shown. For the input of the final "ai", take the same method as the input of the initial "b". When both the initial "b" and the final "ai" are entered, the input method will be as follows Figure 7 shown. The Chinese character "白" is located in the first position of the cand...

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Abstract

The invention relates to a virtual keyboard design scheme for inputting Chinese characters by brain waves. In the scheme, a virtual keyboard consisting of 42 buttons (six rows * seven columns) is constructed on a computer screen; the upper half part of each key of the keyboard is marked with a character representing a name of the key; the lower half part of each key is provided with a small window with a pixel of 30*30, which is used for carrying out visual stimulation; first to fourth rows of buttons are marked with initial consonants and vowels in a binary syllabification input method; first five number keys in a fifth row represent positions of candidate Chinese characters; the back and forth page turning of candidate characters / words is realized by key names of '->' and '-<'; and a sixth row of buttons has the main function of realizing selection of the first to fifth rows of buttons. In the using process of a user, the selection of each binary syllabification character needs to be completed by two steps, i.e. a first step of selecting a certain button on the sixth row so as to select the row in which the binary syllabification character is positioned and a second step of selecting the binary syllabification character in the selected row and repeating.

Description

technical field [0001] This program involves a brand-new human-computer interaction method, which uses brain-computer interface technology to realize the input of Chinese characters by using brain waves combined with Shuangpin input (without hand typing on the keyboard or voice recognition), which can help paralyzed patients and other severe motor function The lost person provides a means of communicating with the outside world. Background technique [0002] Using brain waves to control computers to realize character input adopts a human-computer interaction technology called brain-computer interface. This technology collects electrical signals generated in the brain's thinking activities, and then analyzes these signals to identify human behavior. Intents and convert them into commands to control smart devices such as computers. Brain-computer interface can be divided into two types: evoked and spontaneous EEG according to the way the signal is generated. There are many w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01G06F3/048G06F3/0484G06F3/0488
Inventor 官金安李梅周到谢莺陈亚光
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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